graphql-engine/docs/graphql/manual/queries/pagination.rst
2019-04-19 16:18:18 +05:30

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Paginate query results
======================
.. contents:: Table of contents
:backlinks: none
:depth: 1
:local:
The operators ``limit`` and ``offset`` are used for pagination.
``limit`` specifies the number of rows to retain from the result set and ``offset`` determines which slice to
retain from the results.
You can see the complete specification of the ``limit`` and ``offset`` arguments in the
:ref:`API reference <PaginationExp>`.
The following are examples of different pagination scenarios:
Limit results
-------------
**Example:** Fetch the first 5 authors from the list of all authors:
.. graphiql::
:view_only:
:query:
query {
author(
limit: 5
) {
id
name
}
}
:response:
{
"data": {
"author": [
{
"id": 1,
"name": "Justin"
},
{
"id": 2,
"name": "Beltran"
},
{
"id": 3,
"name": "Sidney"
},
{
"id": 4,
"name": "Anjela"
},
{
"id": 5,
"name": "Amii"
}
]
}
}
Limit results from an offset
----------------------------
**Example:** Fetch 5 authors from the list of all authors, starting with the 6th one:
.. graphiql::
:view_only:
:query:
query {
author(
limit: 5,
offset:5
) {
id
name
}
}
:response:
{
"data": {
"author": [
{
"id": 6,
"name": "Corny"
},
{
"id": 7,
"name": "Berti"
},
{
"id": 8,
"name": "April"
},
{
"id": 9,
"name": "Ninnetta"
},
{
"id": 10,
"name": "Lyndsay"
}
]
}
}
.. _nested_paginate:
Limit results in a nested object
--------------------------------
**Example:** Fetch a list of authors and a list of their first 2 articles:
.. graphiql::
:view_only:
:query:
query {
author {
id
name
articles (
limit: 2
offset: 0
) {
id
title
}
}
}
:response:
{
"data": {
"author": [
{
"id": 1,
"name": "Justin",
"articles": [
{
"id": 15,
"title": "vel dapibus at"
},
{
"id": 16,
"title": "sem duis aliquam"
}
]
},
{
"id": 2,
"name": "Beltran",
"articles": [
{
"id": 2,
"title": "a nibh"
},
{
"id": 9,
"title": "sit amet"
}
]
},
{
"id": 3,
"name": "Sidney",
"articles": [
{
"id": 6,
"title": "sapien ut"
},
{
"id": 11,
"title": "turpis eget"
}
]
},
{
"id": 4,
"name": "Anjela",
"articles": [
{
"id": 1,
"title": "sit amet"
},
{
"id": 3,
"title": "amet justo morbi"
}
]
}
]
}
}